Module 4: Conditional execution

2.1.1 Control program flow using if and if-else statements

• Use an if statement to execute code when a condition is true.
• Use an if-else structure to select between two execution paths.
• Construct conditions using Boolean expressions.
• Trace which branch is executed based on the result of a condition.
• Recognize when a conditional block is skipped.

2.1.2 Select among multiple execution paths using if-elif-else statements

• Use an if-elif structure to evaluate multiple conditions.
• Use an if-elif-else structure to provide a fallback execution path.
• Explain that conditions are evaluated in order until a matching branch is found.
• Trace the execution of multi-branch conditional structures.
• Recognize incorrectly ordered, redundant, or unreachable conditional branches.

2.1.3 Construct compound and nested conditional structures

• Use multiple conditional statements within the same program.
• Nest conditional statements inside other conditional branches.
• Combine Boolean expressions within conditional structures.
• Trace the execution of compound conditional structures.
• Identify unreachable, redundant, or incorrectly ordered conditional branches.